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Brakes / Motorbrakes
Our Brakes / Motor Brakes category offers high-performance solutions for safe and precise drives in industrial and mobile equipment. The B/MR hydraulic motors with integrated multi-disc brake deliver high load capacity and are ideal for conveyor systems, mechanical engineering, agriculture, and mining. Learn more...
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The range is complemented by hydraulic wet disc brakes of the LB, LBS, and LBV series, providing maximum braking force for heavy-duty machinery, wheel drives, and material handling. All products are designed for extreme operating conditions and offer long-lasting quality as well as broad compatibility.
Hydraulic Motors with Brake & Hydraulic Disc Brakes – Frequently Asked Questions
For which applications are the B/MR hydraulic motor brakes and the LB, LBS, LBV hydraulic disc brakes suitable?
The B/MR hydraulic motor brakes are suitable for a wide range of industrial applications such as conveyor systems, robotics, metalworking, textile machinery, food processing, agricultural machinery, and mining equipment. The LB, LBS, LBV hydraulic wet disc brakes are ideal for heavy-duty machinery, mining, agricultural equipment, wheel drives, material handling, door and swing drives. Both series are specifically designed for demanding industrial and mobile equipment applications.
Which hydraulic fluid is recommended for hydraulic motors with brake and hydraulic disc brakes?
A high-quality, mineral-oil-based hydraulic fluid with anti-wear properties, type HLP (DIN 51524) or HM (ISO 6743/4), is recommended. For synthetic oils, the manufacturer should be consulted to select suitable sealing materials. For maximum service life, fluid filtration to ISO code 20/16 with 25 µm or finer is required.
What are the optimal viscosity and temperature ranges for hydraulic motors with brake and disc brakes?
The ideal viscosity range is 20–75 mm²/s [98–347 SUS], with a minimum viscosity of 13 mm²/s [70 SUS] at 50 °C. The operating temperature range is -40 °C to 140 °C, with a maximum recommended system temperature of 82 °C for extended service life.
What maintenance intervals apply for the LB, LBS, LBV hydraulic disc brakes?
After the first 50–100 operating hours, the hydraulic fluid should be changed. Thereafter, a change is recommended every 500–1500 operating hours to maintain full braking performance and longevity.
Which shaft options are available for the B/MR hydraulic motor brakes?
- C shaft: Ø25 straight, keyway A8x7x32 DIN 6885 (max. 34 daNm)
- CO shaft: Ø1" straight, keyway ¼"x¼"x1¼" BS46 (max. 34 daNm)
- SH shaft: Spline, BS 2059 (SAE 6B) (max. 40 daNm)
- SA shaft: Spline, B25x22h9 DIN 5482 (max. 40 daNm)
- CB shaft: Ø32 straight, keyway A10x8x45 DIN 6885 (max. 77 daNm)
What should be considered when installing and operating hydraulic motors with brake?
A drain line is mandatory. The brake set pressure is the difference between the brake release pressure and the drain line pressure. Intermittent speed and intermittent pressure must not occur simultaneously to avoid damage.
How does speed affect the permissible radial shaft load?
For B/MR hydraulic motor brakes, up to 800 daN radial load is permissible below 200 RPM. At higher speeds and short distance L, specific calculation formulas apply, such as Prad = (25000 / (95+L)) * (800 / n) daN for cylindrical shafts.
What do “Intermittent Operation” and “Peak Load” mean for hydraulic motor brakes?
Intermittent Operation: Short-term load up to 10% per minute above continuous ratings.
Peak Load: Extremely short-term peak values up to a maximum of 1% per minute. Speed and pressure peaks must not occur simultaneously to ensure the service life of the hydraulic motor with brake.